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<pre><span class="sourceLineNo">001</span>/*<a name="line.1"></a>
<span class="sourceLineNo">002</span> * Licensed to the Apache Software Foundation (ASF) under one or more<a name="line.2"></a>
<span class="sourceLineNo">003</span> * contributor license agreements.  See the NOTICE file distributed with<a name="line.3"></a>
<span class="sourceLineNo">004</span> * this work for additional information regarding copyright ownership.<a name="line.4"></a>
<span class="sourceLineNo">005</span> * The ASF licenses this file to You under the Apache License, Version 2.0<a name="line.5"></a>
<span class="sourceLineNo">006</span> * (the "License"); you may not use this file except in compliance with<a name="line.6"></a>
<span class="sourceLineNo">007</span> * the License.  You may obtain a copy of the License at<a name="line.7"></a>
<span class="sourceLineNo">008</span> *<a name="line.8"></a>
<span class="sourceLineNo">009</span> *      http://www.apache.org/licenses/LICENSE-2.0<a name="line.9"></a>
<span class="sourceLineNo">010</span> *<a name="line.10"></a>
<span class="sourceLineNo">011</span> * Unless required by applicable law or agreed to in writing, software<a name="line.11"></a>
<span class="sourceLineNo">012</span> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.12"></a>
<span class="sourceLineNo">013</span> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.13"></a>
<span class="sourceLineNo">014</span> * See the License for the specific language governing permissions and<a name="line.14"></a>
<span class="sourceLineNo">015</span> * limitations under the License.<a name="line.15"></a>
<span class="sourceLineNo">016</span> */<a name="line.16"></a>
<span class="sourceLineNo">017</span><a name="line.17"></a>
<span class="sourceLineNo">018</span>package org.apache.commons.io.input;<a name="line.18"></a>
<span class="sourceLineNo">019</span><a name="line.19"></a>
<span class="sourceLineNo">020</span>import static org.apache.commons.io.IOUtils.EOF;<a name="line.20"></a>
<span class="sourceLineNo">021</span><a name="line.21"></a>
<span class="sourceLineNo">022</span>import java.io.IOException;<a name="line.22"></a>
<span class="sourceLineNo">023</span>import java.io.InputStream;<a name="line.23"></a>
<span class="sourceLineNo">024</span>import java.nio.ByteBuffer;<a name="line.24"></a>
<span class="sourceLineNo">025</span>import java.nio.CharBuffer;<a name="line.25"></a>
<span class="sourceLineNo">026</span>import java.nio.charset.CharacterCodingException;<a name="line.26"></a>
<span class="sourceLineNo">027</span>import java.nio.charset.Charset;<a name="line.27"></a>
<span class="sourceLineNo">028</span>import java.nio.charset.CharsetEncoder;<a name="line.28"></a>
<span class="sourceLineNo">029</span>import java.nio.charset.CoderResult;<a name="line.29"></a>
<span class="sourceLineNo">030</span>import java.nio.charset.CodingErrorAction;<a name="line.30"></a>
<span class="sourceLineNo">031</span>import java.util.Objects;<a name="line.31"></a>
<span class="sourceLineNo">032</span><a name="line.32"></a>
<span class="sourceLineNo">033</span>/**<a name="line.33"></a>
<span class="sourceLineNo">034</span> * {@link InputStream} implementation that can read from String, StringBuffer,<a name="line.34"></a>
<span class="sourceLineNo">035</span> * StringBuilder or CharBuffer.<a name="line.35"></a>
<span class="sourceLineNo">036</span> * &lt;p&gt;<a name="line.36"></a>
<span class="sourceLineNo">037</span> * &lt;strong&gt;Note:&lt;/strong&gt; Supports {@link #mark(int)} and {@link #reset()}.<a name="line.37"></a>
<span class="sourceLineNo">038</span> *<a name="line.38"></a>
<span class="sourceLineNo">039</span> * @since 2.2<a name="line.39"></a>
<span class="sourceLineNo">040</span> */<a name="line.40"></a>
<span class="sourceLineNo">041</span>public class CharSequenceInputStream extends InputStream {<a name="line.41"></a>
<span class="sourceLineNo">042</span><a name="line.42"></a>
<span class="sourceLineNo">043</span>    private static final int BUFFER_SIZE = 2048;<a name="line.43"></a>
<span class="sourceLineNo">044</span><a name="line.44"></a>
<span class="sourceLineNo">045</span>    private static final int NO_MARK = -1;<a name="line.45"></a>
<span class="sourceLineNo">046</span><a name="line.46"></a>
<span class="sourceLineNo">047</span>    private final CharsetEncoder encoder;<a name="line.47"></a>
<span class="sourceLineNo">048</span>    private final CharBuffer cbuf;<a name="line.48"></a>
<span class="sourceLineNo">049</span>    private final ByteBuffer bbuf;<a name="line.49"></a>
<span class="sourceLineNo">050</span><a name="line.50"></a>
<span class="sourceLineNo">051</span>    private int mark_cbuf; // position in cbuf<a name="line.51"></a>
<span class="sourceLineNo">052</span>    private int mark_bbuf; // position in bbuf<a name="line.52"></a>
<span class="sourceLineNo">053</span><a name="line.53"></a>
<span class="sourceLineNo">054</span>    /**<a name="line.54"></a>
<span class="sourceLineNo">055</span>     * Constructor.<a name="line.55"></a>
<span class="sourceLineNo">056</span>     *<a name="line.56"></a>
<span class="sourceLineNo">057</span>     * @param cs the input character sequence<a name="line.57"></a>
<span class="sourceLineNo">058</span>     * @param charset the character set name to use<a name="line.58"></a>
<span class="sourceLineNo">059</span>     * @param bufferSize the buffer size to use.<a name="line.59"></a>
<span class="sourceLineNo">060</span>     * @throws IllegalArgumentException if the buffer is not large enough to hold a complete character<a name="line.60"></a>
<span class="sourceLineNo">061</span>     */<a name="line.61"></a>
<span class="sourceLineNo">062</span>    public CharSequenceInputStream(final CharSequence cs, final Charset charset, final int bufferSize) {<a name="line.62"></a>
<span class="sourceLineNo">063</span>        super();<a name="line.63"></a>
<span class="sourceLineNo">064</span>        this.encoder = charset.newEncoder()<a name="line.64"></a>
<span class="sourceLineNo">065</span>            .onMalformedInput(CodingErrorAction.REPLACE)<a name="line.65"></a>
<span class="sourceLineNo">066</span>            .onUnmappableCharacter(CodingErrorAction.REPLACE);<a name="line.66"></a>
<span class="sourceLineNo">067</span>        // Ensure that buffer is long enough to hold a complete character<a name="line.67"></a>
<span class="sourceLineNo">068</span>        final float maxBytesPerChar = encoder.maxBytesPerChar();<a name="line.68"></a>
<span class="sourceLineNo">069</span>        if (bufferSize &lt; maxBytesPerChar) {<a name="line.69"></a>
<span class="sourceLineNo">070</span>            throw new IllegalArgumentException("Buffer size " + bufferSize + " is less than maxBytesPerChar " +<a name="line.70"></a>
<span class="sourceLineNo">071</span>                    maxBytesPerChar);<a name="line.71"></a>
<span class="sourceLineNo">072</span>        }<a name="line.72"></a>
<span class="sourceLineNo">073</span>        this.bbuf = ByteBuffer.allocate(bufferSize);<a name="line.73"></a>
<span class="sourceLineNo">074</span>        this.bbuf.flip();<a name="line.74"></a>
<span class="sourceLineNo">075</span>        this.cbuf = CharBuffer.wrap(cs);<a name="line.75"></a>
<span class="sourceLineNo">076</span>        this.mark_cbuf = NO_MARK;<a name="line.76"></a>
<span class="sourceLineNo">077</span>        this.mark_bbuf = NO_MARK;<a name="line.77"></a>
<span class="sourceLineNo">078</span>    }<a name="line.78"></a>
<span class="sourceLineNo">079</span><a name="line.79"></a>
<span class="sourceLineNo">080</span>    /**<a name="line.80"></a>
<span class="sourceLineNo">081</span>     * Constructor, calls {@link #CharSequenceInputStream(CharSequence, Charset, int)}.<a name="line.81"></a>
<span class="sourceLineNo">082</span>     *<a name="line.82"></a>
<span class="sourceLineNo">083</span>     * @param cs the input character sequence<a name="line.83"></a>
<span class="sourceLineNo">084</span>     * @param charset the character set name to use<a name="line.84"></a>
<span class="sourceLineNo">085</span>     * @param bufferSize the buffer size to use.<a name="line.85"></a>
<span class="sourceLineNo">086</span>     * @throws IllegalArgumentException if the buffer is not large enough to hold a complete character<a name="line.86"></a>
<span class="sourceLineNo">087</span>     */<a name="line.87"></a>
<span class="sourceLineNo">088</span>    public CharSequenceInputStream(final CharSequence cs, final String charset, final int bufferSize) {<a name="line.88"></a>
<span class="sourceLineNo">089</span>        this(cs, Charset.forName(charset), bufferSize);<a name="line.89"></a>
<span class="sourceLineNo">090</span>    }<a name="line.90"></a>
<span class="sourceLineNo">091</span><a name="line.91"></a>
<span class="sourceLineNo">092</span>    /**<a name="line.92"></a>
<span class="sourceLineNo">093</span>     * Constructor, calls {@link #CharSequenceInputStream(CharSequence, Charset, int)}<a name="line.93"></a>
<span class="sourceLineNo">094</span>     * with a buffer size of 2048.<a name="line.94"></a>
<span class="sourceLineNo">095</span>     *<a name="line.95"></a>
<span class="sourceLineNo">096</span>     * @param cs the input character sequence<a name="line.96"></a>
<span class="sourceLineNo">097</span>     * @param charset the character set name to use<a name="line.97"></a>
<span class="sourceLineNo">098</span>     * @throws IllegalArgumentException if the buffer is not large enough to hold a complete character<a name="line.98"></a>
<span class="sourceLineNo">099</span>     */<a name="line.99"></a>
<span class="sourceLineNo">100</span>    public CharSequenceInputStream(final CharSequence cs, final Charset charset) {<a name="line.100"></a>
<span class="sourceLineNo">101</span>        this(cs, charset, BUFFER_SIZE);<a name="line.101"></a>
<span class="sourceLineNo">102</span>    }<a name="line.102"></a>
<span class="sourceLineNo">103</span><a name="line.103"></a>
<span class="sourceLineNo">104</span>    /**<a name="line.104"></a>
<span class="sourceLineNo">105</span>     * Constructor, calls {@link #CharSequenceInputStream(CharSequence, String, int)}<a name="line.105"></a>
<span class="sourceLineNo">106</span>     * with a buffer size of 2048.<a name="line.106"></a>
<span class="sourceLineNo">107</span>     *<a name="line.107"></a>
<span class="sourceLineNo">108</span>     * @param cs the input character sequence<a name="line.108"></a>
<span class="sourceLineNo">109</span>     * @param charset the character set name to use<a name="line.109"></a>
<span class="sourceLineNo">110</span>     * @throws IllegalArgumentException if the buffer is not large enough to hold a complete character<a name="line.110"></a>
<span class="sourceLineNo">111</span>     */<a name="line.111"></a>
<span class="sourceLineNo">112</span>    public CharSequenceInputStream(final CharSequence cs, final String charset) {<a name="line.112"></a>
<span class="sourceLineNo">113</span>        this(cs, charset, BUFFER_SIZE);<a name="line.113"></a>
<span class="sourceLineNo">114</span>    }<a name="line.114"></a>
<span class="sourceLineNo">115</span><a name="line.115"></a>
<span class="sourceLineNo">116</span>    /**<a name="line.116"></a>
<span class="sourceLineNo">117</span>     * Fills the byte output buffer from the input char buffer.<a name="line.117"></a>
<span class="sourceLineNo">118</span>     *<a name="line.118"></a>
<span class="sourceLineNo">119</span>     * @throws CharacterCodingException<a name="line.119"></a>
<span class="sourceLineNo">120</span>     *             an error encoding data<a name="line.120"></a>
<span class="sourceLineNo">121</span>     */<a name="line.121"></a>
<span class="sourceLineNo">122</span>    private void fillBuffer() throws CharacterCodingException {<a name="line.122"></a>
<span class="sourceLineNo">123</span>        this.bbuf.compact();<a name="line.123"></a>
<span class="sourceLineNo">124</span>        final CoderResult result = this.encoder.encode(this.cbuf, this.bbuf, true);<a name="line.124"></a>
<span class="sourceLineNo">125</span>        if (result.isError()) {<a name="line.125"></a>
<span class="sourceLineNo">126</span>            result.throwException();<a name="line.126"></a>
<span class="sourceLineNo">127</span>        }<a name="line.127"></a>
<span class="sourceLineNo">128</span>        this.bbuf.flip();<a name="line.128"></a>
<span class="sourceLineNo">129</span>    }<a name="line.129"></a>
<span class="sourceLineNo">130</span><a name="line.130"></a>
<span class="sourceLineNo">131</span>    @Override<a name="line.131"></a>
<span class="sourceLineNo">132</span>    public int read(final byte[] array, int off, int len) throws IOException {<a name="line.132"></a>
<span class="sourceLineNo">133</span>        Objects.requireNonNull(array, "array");<a name="line.133"></a>
<span class="sourceLineNo">134</span>        if (len &lt; 0 || (off + len) &gt; array.length) {<a name="line.134"></a>
<span class="sourceLineNo">135</span>            throw new IndexOutOfBoundsException("Array Size=" + array.length +<a name="line.135"></a>
<span class="sourceLineNo">136</span>                    ", offset=" + off + ", length=" + len);<a name="line.136"></a>
<span class="sourceLineNo">137</span>        }<a name="line.137"></a>
<span class="sourceLineNo">138</span>        if (len == 0) {<a name="line.138"></a>
<span class="sourceLineNo">139</span>            return 0; // must return 0 for zero length read<a name="line.139"></a>
<span class="sourceLineNo">140</span>        }<a name="line.140"></a>
<span class="sourceLineNo">141</span>        if (!this.bbuf.hasRemaining() &amp;&amp; !this.cbuf.hasRemaining()) {<a name="line.141"></a>
<span class="sourceLineNo">142</span>            return EOF;<a name="line.142"></a>
<span class="sourceLineNo">143</span>        }<a name="line.143"></a>
<span class="sourceLineNo">144</span>        int bytesRead = 0;<a name="line.144"></a>
<span class="sourceLineNo">145</span>        while (len &gt; 0) {<a name="line.145"></a>
<span class="sourceLineNo">146</span>            if (this.bbuf.hasRemaining()) {<a name="line.146"></a>
<span class="sourceLineNo">147</span>                final int chunk = Math.min(this.bbuf.remaining(), len);<a name="line.147"></a>
<span class="sourceLineNo">148</span>                this.bbuf.get(array, off, chunk);<a name="line.148"></a>
<span class="sourceLineNo">149</span>                off += chunk;<a name="line.149"></a>
<span class="sourceLineNo">150</span>                len -= chunk;<a name="line.150"></a>
<span class="sourceLineNo">151</span>                bytesRead += chunk;<a name="line.151"></a>
<span class="sourceLineNo">152</span>            } else {<a name="line.152"></a>
<span class="sourceLineNo">153</span>                fillBuffer();<a name="line.153"></a>
<span class="sourceLineNo">154</span>                if (!this.bbuf.hasRemaining() &amp;&amp; !this.cbuf.hasRemaining()) {<a name="line.154"></a>
<span class="sourceLineNo">155</span>                    break;<a name="line.155"></a>
<span class="sourceLineNo">156</span>                }<a name="line.156"></a>
<span class="sourceLineNo">157</span>            }<a name="line.157"></a>
<span class="sourceLineNo">158</span>        }<a name="line.158"></a>
<span class="sourceLineNo">159</span>        return bytesRead == 0 &amp;&amp; !this.cbuf.hasRemaining() ? EOF : bytesRead;<a name="line.159"></a>
<span class="sourceLineNo">160</span>    }<a name="line.160"></a>
<span class="sourceLineNo">161</span><a name="line.161"></a>
<span class="sourceLineNo">162</span>    @Override<a name="line.162"></a>
<span class="sourceLineNo">163</span>    public int read() throws IOException {<a name="line.163"></a>
<span class="sourceLineNo">164</span>        for (;;) {<a name="line.164"></a>
<span class="sourceLineNo">165</span>            if (this.bbuf.hasRemaining()) {<a name="line.165"></a>
<span class="sourceLineNo">166</span>                return this.bbuf.get() &amp; 0xFF;<a name="line.166"></a>
<span class="sourceLineNo">167</span>            }<a name="line.167"></a>
<span class="sourceLineNo">168</span>            fillBuffer();<a name="line.168"></a>
<span class="sourceLineNo">169</span>            if (!this.bbuf.hasRemaining() &amp;&amp; !this.cbuf.hasRemaining()) {<a name="line.169"></a>
<span class="sourceLineNo">170</span>                return EOF;<a name="line.170"></a>
<span class="sourceLineNo">171</span>            }<a name="line.171"></a>
<span class="sourceLineNo">172</span>        }<a name="line.172"></a>
<span class="sourceLineNo">173</span>    }<a name="line.173"></a>
<span class="sourceLineNo">174</span><a name="line.174"></a>
<span class="sourceLineNo">175</span>    @Override<a name="line.175"></a>
<span class="sourceLineNo">176</span>    public int read(final byte[] b) throws IOException {<a name="line.176"></a>
<span class="sourceLineNo">177</span>        return read(b, 0, b.length);<a name="line.177"></a>
<span class="sourceLineNo">178</span>    }<a name="line.178"></a>
<span class="sourceLineNo">179</span><a name="line.179"></a>
<span class="sourceLineNo">180</span>    @Override<a name="line.180"></a>
<span class="sourceLineNo">181</span>    public long skip(long n) throws IOException {<a name="line.181"></a>
<span class="sourceLineNo">182</span>        /*<a name="line.182"></a>
<span class="sourceLineNo">183</span>         * This could be made more efficient by using position to skip within the current buffer.<a name="line.183"></a>
<span class="sourceLineNo">184</span>         */<a name="line.184"></a>
<span class="sourceLineNo">185</span>        long skipped = 0;<a name="line.185"></a>
<span class="sourceLineNo">186</span>        while (n &gt; 0 &amp;&amp; available() &gt; 0) {<a name="line.186"></a>
<span class="sourceLineNo">187</span>            this.read();<a name="line.187"></a>
<span class="sourceLineNo">188</span>            n--;<a name="line.188"></a>
<span class="sourceLineNo">189</span>            skipped++;<a name="line.189"></a>
<span class="sourceLineNo">190</span>        }<a name="line.190"></a>
<span class="sourceLineNo">191</span>        return skipped;<a name="line.191"></a>
<span class="sourceLineNo">192</span>    }<a name="line.192"></a>
<span class="sourceLineNo">193</span><a name="line.193"></a>
<span class="sourceLineNo">194</span>    /**<a name="line.194"></a>
<span class="sourceLineNo">195</span>     * Return an estimate of the number of bytes remaining in the byte stream.<a name="line.195"></a>
<span class="sourceLineNo">196</span>     * @return the count of bytes that can be read without blocking (or returning EOF).<a name="line.196"></a>
<span class="sourceLineNo">197</span>     *<a name="line.197"></a>
<span class="sourceLineNo">198</span>     * @throws IOException if an error occurs (probably not possible)<a name="line.198"></a>
<span class="sourceLineNo">199</span>     */<a name="line.199"></a>
<span class="sourceLineNo">200</span>    @Override<a name="line.200"></a>
<span class="sourceLineNo">201</span>    public int available() throws IOException {<a name="line.201"></a>
<span class="sourceLineNo">202</span>        // The cached entries are in bbuf; since encoding always creates at least one byte<a name="line.202"></a>
<span class="sourceLineNo">203</span>        // per character, we can add the two to get a better estimate (e.g. if bbuf is empty)<a name="line.203"></a>
<span class="sourceLineNo">204</span>        // Note that the previous implementation (2.4) could return zero even though there were<a name="line.204"></a>
<span class="sourceLineNo">205</span>        // encoded bytes still available.<a name="line.205"></a>
<span class="sourceLineNo">206</span>        return this.bbuf.remaining() + this.cbuf.remaining();<a name="line.206"></a>
<span class="sourceLineNo">207</span>    }<a name="line.207"></a>
<span class="sourceLineNo">208</span><a name="line.208"></a>
<span class="sourceLineNo">209</span>    @Override<a name="line.209"></a>
<span class="sourceLineNo">210</span>    public void close() throws IOException {<a name="line.210"></a>
<span class="sourceLineNo">211</span>        // noop<a name="line.211"></a>
<span class="sourceLineNo">212</span>    }<a name="line.212"></a>
<span class="sourceLineNo">213</span><a name="line.213"></a>
<span class="sourceLineNo">214</span>    /**<a name="line.214"></a>
<span class="sourceLineNo">215</span>     * {@inheritDoc}<a name="line.215"></a>
<span class="sourceLineNo">216</span>     * @param readlimit max read limit (ignored)<a name="line.216"></a>
<span class="sourceLineNo">217</span>     */<a name="line.217"></a>
<span class="sourceLineNo">218</span>    @Override<a name="line.218"></a>
<span class="sourceLineNo">219</span>    public synchronized void mark(final int readlimit) {<a name="line.219"></a>
<span class="sourceLineNo">220</span>        this.mark_cbuf = this.cbuf.position();<a name="line.220"></a>
<span class="sourceLineNo">221</span>        this.mark_bbuf = this.bbuf.position();<a name="line.221"></a>
<span class="sourceLineNo">222</span>        this.cbuf.mark();<a name="line.222"></a>
<span class="sourceLineNo">223</span>        this.bbuf.mark();<a name="line.223"></a>
<span class="sourceLineNo">224</span>        // It would be nice to be able to use mark &amp; reset on the cbuf and bbuf;<a name="line.224"></a>
<span class="sourceLineNo">225</span>        // however the bbuf is re-used so that won't work<a name="line.225"></a>
<span class="sourceLineNo">226</span>    }<a name="line.226"></a>
<span class="sourceLineNo">227</span><a name="line.227"></a>
<span class="sourceLineNo">228</span>    @Override<a name="line.228"></a>
<span class="sourceLineNo">229</span>    public synchronized void reset() throws IOException {<a name="line.229"></a>
<span class="sourceLineNo">230</span>        /*<a name="line.230"></a>
<span class="sourceLineNo">231</span>         * This is not the most efficient implementation, as it re-encodes from the beginning.<a name="line.231"></a>
<span class="sourceLineNo">232</span>         *<a name="line.232"></a>
<span class="sourceLineNo">233</span>         * Since the bbuf is re-used, in general it's necessary to re-encode the data.<a name="line.233"></a>
<span class="sourceLineNo">234</span>         *<a name="line.234"></a>
<span class="sourceLineNo">235</span>         * It should be possible to apply some optimisations however:<a name="line.235"></a>
<span class="sourceLineNo">236</span>         * + use mark/reset on the cbuf and bbuf. This would only work if the buffer had not been (re)filled since<a name="line.236"></a>
<span class="sourceLineNo">237</span>         * the mark. The code would have to catch InvalidMarkException - does not seem possible to check if mark is<a name="line.237"></a>
<span class="sourceLineNo">238</span>         * valid otherwise. + Try saving the state of the cbuf before each fillBuffer; it might be possible to<a name="line.238"></a>
<span class="sourceLineNo">239</span>         * restart from there.<a name="line.239"></a>
<span class="sourceLineNo">240</span>         */<a name="line.240"></a>
<span class="sourceLineNo">241</span>        if (this.mark_cbuf != NO_MARK) {<a name="line.241"></a>
<span class="sourceLineNo">242</span>            // if cbuf is at 0, we have not started reading anything, so skip re-encoding<a name="line.242"></a>
<span class="sourceLineNo">243</span>            if (this.cbuf.position() != 0) {<a name="line.243"></a>
<span class="sourceLineNo">244</span>                this.encoder.reset();<a name="line.244"></a>
<span class="sourceLineNo">245</span>                this.cbuf.rewind();<a name="line.245"></a>
<span class="sourceLineNo">246</span>                this.bbuf.rewind();<a name="line.246"></a>
<span class="sourceLineNo">247</span>                this.bbuf.limit(0); // rewind does not clear the buffer<a name="line.247"></a>
<span class="sourceLineNo">248</span>                while(this.cbuf.position() &lt; this.mark_cbuf) {<a name="line.248"></a>
<span class="sourceLineNo">249</span>                    this.bbuf.rewind(); // empty the buffer (we only refill when empty during normal processing)<a name="line.249"></a>
<span class="sourceLineNo">250</span>                    this.bbuf.limit(0);<a name="line.250"></a>
<span class="sourceLineNo">251</span>                    fillBuffer();<a name="line.251"></a>
<span class="sourceLineNo">252</span>                }<a name="line.252"></a>
<span class="sourceLineNo">253</span>            }<a name="line.253"></a>
<span class="sourceLineNo">254</span>            if (this.cbuf.position() != this.mark_cbuf) {<a name="line.254"></a>
<span class="sourceLineNo">255</span>                throw new IllegalStateException("Unexpected CharBuffer position: actual=" + cbuf.position() + " " +<a name="line.255"></a>
<span class="sourceLineNo">256</span>                        "expected=" + this.mark_cbuf);<a name="line.256"></a>
<span class="sourceLineNo">257</span>            }<a name="line.257"></a>
<span class="sourceLineNo">258</span>            this.bbuf.position(this.mark_bbuf);<a name="line.258"></a>
<span class="sourceLineNo">259</span>            this.mark_cbuf = NO_MARK;<a name="line.259"></a>
<span class="sourceLineNo">260</span>            this.mark_bbuf = NO_MARK;<a name="line.260"></a>
<span class="sourceLineNo">261</span>        }<a name="line.261"></a>
<span class="sourceLineNo">262</span>    }<a name="line.262"></a>
<span class="sourceLineNo">263</span><a name="line.263"></a>
<span class="sourceLineNo">264</span>    @Override<a name="line.264"></a>
<span class="sourceLineNo">265</span>    public boolean markSupported() {<a name="line.265"></a>
<span class="sourceLineNo">266</span>        return true;<a name="line.266"></a>
<span class="sourceLineNo">267</span>    }<a name="line.267"></a>
<span class="sourceLineNo">268</span><a name="line.268"></a>
<span class="sourceLineNo">269</span>}<a name="line.269"></a>




























































</pre>
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